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Vishay General Semiconductor - Diodes Division P6SMB24CAHM3_B/H
- Part No.:
- P6SMB24CAHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB24CAHM3_B/H.pdf
- Description:
- 600W,24V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,941
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Product details
Overview
P6SMB24CAHM3_B/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on signal or power lines. It features a 24 V standoff voltage (VWM), 33.2 V maximum clamping voltage (VC) at 18.1 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the P6SMB24CAHM3_B/H datasheet, P6SMB24CAHM3_B/H pinout, P6SMB24CAHM3_B/H application, or P6SMB24CAHM3_B/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, SMB (DO-214AA) package compatibility, and thermal resistance (RθJA = 100 °C/W) for board-level surge protection design.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal lines without polarity concerns. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at VWM), while the 10/1000 μs surge rating reflects standardized lightning and inductive-switching transient immunity.
The device is rated for TJ = -65 °C to +150 °C operation and meets JESD201 Class 2 whisker resistance and MSL Level 1 reflow requirements (peak 260 °C). Its halogen-free, RoHS-compliant HM3 suffix and _B/H ordering code confirm AEC-Q101 qualification and 7" tape-and-reel packaging for automotive-grade production use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 20.5 V - Maximum continuous reverse voltage before clamping begins; defines safe operating window for protected circuitry. |
| VBR (Breakdown) | 22.8 V to 25.2 V at 1.0 mA - Tight tolerance ensures predictable turn-on during overvoltage events. |
| VC (Clamping) | 33.2 V at IPPM = 18.1 A - Limits voltage seen by downstream components during 600 W transient surges. |
| PPPM | 600 W - Peak pulse power handling per 10/1000 μs waveform; validates robustness against IEC 61000-4-5 Level 3/4 surges. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance under standard PCB pad layout; informs derating above TA = 25 °C. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial environments. |
| AEC-Q101 | Qualified - Confirmed reliability for automotive applications including engine control, body electronics, and ADAS sensors. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. No polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Accepts surge current from either direction; connects to line under protection. |
| Cathode | Transient current exit (bidirectional) | Completes clamping path to ground or reference rail; symmetrical with Anode in CA devices. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC, differential, or floating signal lines without polarity constraints. |
| 600 W peak pulse power | Meets IEC 61000-4-5 surge immunity requirements for industrial and automotive subsystems. |
| AEC-Q101 qualified (HM3 + _B) | Validated for automotive use including temperature cycling, humidity testing, and mechanical shock. |
| MSL Level 1, 260 °C peak | Compatible with standard lead-free reflow profiles without preconditioning or baking. |
| Glass passivated junction | Ensures stable VBR over time and temperature, minimizing parameter drift in long-life deployments. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across signal pair or supply rail to limit transient excursions below IC absolute maximum ratings. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V interface ICs during 12 V/24 V system surges up to ±33.2 V. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and ESD in factory automation cabinets. IC Role / Device Role / Timing Role: Fast-response shunt suppressor connected between field-side I/O line and common reference to divert surge energy away from isolation barrier. Use Value: Maintains functional safety integrity by limiting transient voltage to <33.2 V during 600 W 10/1000 μs events, preserving optocoupler or digital isolator lifetime. |
| Telecom Line Interface | Consumer Power Adapter Output |
|
Use Scenario: Shielding Ethernet PHYs and PoE injectors from lightning-induced surges on twisted-pair data lines in outdoor telecom equipment. IC Role / Device Role / Timing Role: Symmetrical TVS array element providing common-mode and differential-mode suppression on RJ45 interface traces. Use Value: Clamps induced common-mode voltages to ≤33.2 V within nanoseconds, preventing PHY reset or transformer saturation during fast-rising transients. |
Use Scenario: Secondary-side overvoltage suppression on 5 V/12 V USB-C or barrel-jack outputs of wall adapters subject to capacitor discharge and hot-plug stress. IC Role / Device Role / Timing Role: Final-stage transient limiter placed between DC output and connector to absorb plug-in spikes and cable-bounce energy. Use Value: Guarantees downstream USB PD controllers or charging ICs see no more than 33.2 V despite 100+ V open-circuit transients, avoiding overvoltage lockout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24CA | Same VWM (20.5 V) and VC (33.2 V), but lower PPPM (400 W); SMA package (DO-214AC), larger footprint. | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 compliance. | Select when cost sensitivity outweighs surge margin and board space permits larger SMA. |
| 1.5KE24CA | Higher PPPM (1500 W), axial-leaded DO-201 package; slower response due to higher parasitic inductance. | Not SMT-compatible; requires through-hole assembly and additional board area; less suitable for high-frequency signal lines. | Choose only for legacy through-hole designs where 1.5 kW surge headroom justifies manual assembly overhead. |
Compared with SMAJ24CA and 1.5KE24CA, P6SMB24CAHM3_B/H delivers optimal balance of 600 W surge capability, SMB footprint efficiency, AEC-Q101 qualification, and nanosecond response-making it the preferred choice for new automotive and industrial SMT designs requiring validated reliability and compact layout.
Availability
P6SMB24CAHM3_B/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O terminals, telecom line interfaces, and consumer power adapter outputs requiring stable component supply with full traceability and lifecycle support.
Supply support for P6SMB24CAHM3_B/H includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for AEC-Q101 compliance, robust surge handling, and seamless SMT integration in space-constrained designs.
FAQ
What does the "CA" suffix indicate in P6SMB24CAHM3_B/H?
The "CA" suffix denotes a bidirectional configuration, meaning the P6SMB24CAHM3_B/H provides symmetrical clamping in both polarities - essential for protecting AC-coupled signals, differential buses like CAN or RS-485, and floating power rails without regard to voltage polarity.
Is P6SMB24CAHM3_B/H suitable for automotive applications?
Yes, P6SMB24CAHM3_B/H is AEC-Q101 qualified (confirmed by HM3 and _B suffixes), tested for temperature cycling, humidity, mechanical shock, and surge endurance - making it approved for under-hood and cabin electronics including ADAS sensors, body control modules, and infotainment power supplies.
How does the SMB (DO-214AA) package of P6SMB24CAHM3_B/H compare to SMA (DO-214AC)?
The SMB package of P6SMB24CAHM3_B/H is smaller than SMA: 3.94 mm × 2.20 mm vs. 4.57 mm × 2.79 mm. This reduces PCB area by ~30% and lowers parasitic inductance, improving high-speed transient response - critical for protecting fast digital interfaces and high-frequency power converters.
What is the maximum clamping voltage of P6SMB24CAHM3_B/H under surge conditions?
The P6SMB24CAHM3_B/H has a maximum clamping voltage (VC) of 33.2 V at 18.1 A peak pulse current (IPPM) using the standard 10/1000 μs waveform. This value is guaranteed across temperature and ensures protected ICs remain within safe operating limits during defined surge events.
Does P6SMB24CAHM3_B/H require a heatsink for standard operation?
No, P6SMB24CAHM3_B/H is designed for surface-mount operation on standard FR-4 PCBs with minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Its RθJA of 100 °C/W allows reliable operation at 5.0 W steady-state dissipation without external heatsinking under typical ambient conditions.
P6SMB24CAHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 33.2V
- Current - Peak Pulse (10/1000µs):
- 18.1A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB24CAHM3_B/H FAQ
1.How can I place an order for P6SMB24CAHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB24CAHM3_B/H on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for P6SMB24CAHM3_B/H reliable?
The price and inventory of P6SMB24CAHM3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB24CAHM3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB24CAHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB24CAHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB24CAHM3_B/H?
P6SMB24CAHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB24CAHM3_B/H order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for P6SMB24CAHM3_B/H?
For technical support, including P6SMB24CAHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB24CAHM3_B/H requirements.
6.How does Aetrix verify that P6SMB24CAHM3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB24CAHM3_B/H products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that P6SMB24CAHM3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB24CAHM3_B/H?
All P6SMB24CAHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB24CAHM3_B/H, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The P6SMB24CAHM3_B/H part is unused and in its original packaging.
Return procedure for P6SMB24CAHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB24CAHM3_B/H Tags
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